question_answer

A horizontal wire free to slide on the vertical rails of a conducting frame as shown in figure. The wire has a mass m and length ℓ and the resistance of the circuit is R. If a uniform magnetic field B is directed perpendicular to the frame, then find the terminal speed of the wire as it falls under the force of gravity, in m/s.\[(m=1kg,\text{ }R=1\Omega ,\]\[B\text{ }=\text{ }1T,\]\[\ell =\sqrt{2}m)\]

Answer:

5.00